23221131994 has 32 divisors (see below), whose sum is σ = 36973472256. Its totient is φ = 10918618560.

The previous prime is 23221131893. The next prime is 23221132037. The reversal of 23221131994 is 49913112232.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1950849 + ... + 1962715.

It is an arithmetic number, because the mean of its divisors is an integer number (1155421008).

Almost surely, 2^23221131994 is an apocalyptic number.

23221131994 is a deficient number, since it is larger than the sum of its proper divisors (13752340262).

23221131994 is a wasteful number, since it uses less digits than its factorization.

23221131994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12790.

The product of its digits is 23328, while the sum is 37.

The spelling of 23221131994 in words is "twenty-three billion, two hundred twenty-one million, one hundred thirty-one thousand, nine hundred ninety-four".